Beef broccoli and sweet potato stir-fry

I made this super healthy stir-fry with the young people at the YMCA cookery class and it was a real hit with them. Its now a family favourite for us too.

60ml water

1 tbsp brown sugar

3 tbsp oyster sauce

450g lean beef cut into thin strips

pinch salt

freshly ground black pepper

1 ½ tbsp. cornflour

1 tbsp sesame oil

250g broccoli (cut into florets)

1 large sweet potao, peeled and cut into 8mm thick slices/ strips

thumb sized piece root ginger, peeled and finely chopped

¼ teasp crushed chilli flakes

Combine the water, brown sugar and oyster sauce in a small bowl, until the sugar has dissolved and set aside.

Season the beef with salt and pepper and toss in cornflour until fully coated.

Heat half of the sesame oil in a large wok and add the beef, stir-fry for 2-3 minutes until beef is cooked through. Set the beef aside in a clean bowl.

Add the remaining sesame oil to the wok, turn up to a high heat and stir-fry the broccoli, sweet potato and root ginger. Add the crushed chillies and pour over the reserved sauce. Cover with a lid, reduce the heat and cook for about 5 minutes until the vegetables are just tender.